Following a tip off, police personnel intercepted the bus near Samuktala and asked the passengers to get down. On thorough search the explosive was found under a seat in an unclaimed bag last mid night, a police officer said.
The passenger, who had occupied the seat, was arrested and the driver and helper of the bus, which was plying on Alipurduar-Samuktala route, were detained for interrogation by the police.
Police were investigating if the explosive was meant for any militant group.
The area is not very far from Bhutan border.
Alipurduar: A two-kg bomb, fitted with a timer device, was found from a bus at Alipurduar in Jalpaiguri district, officials said.
First Published: Thursday, October 11, 2012, 13:58